Answer Posted / balakrishna

Calibration: it is a process where an instrument is set to
provide a correct response to a given set of conditions.


verification:it is a process for such instruments is one of
challenging the performance of the instruments by measuring
known standards.

What is intact assay method development.....?

2679

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what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3705

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how pda detector works over uv?

746

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could negative ions be produced by bombardment process in mass spectrometry?

1789

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what is mean by nitrosamine impurities?

1077

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What is a difference between potency and purity?

1228

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2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2227

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which are the sizes of capsules?

988

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how to decide for one product require water content or LOD?

793

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If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

1004

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in which situation ion pair agent require to use?

753

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How to start the dissolution development for unknown tab?

1692

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In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3188

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In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1982

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In IR spectra, generally a molecule vibrates without apply emr or ir light?

1988

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